Tooth-brush.



J. R. BOWEN.

TOOTH BRUSH.

APPLICATION FILED SEPT. i6. 1935.

1,1 88,614. Patented June 27,1916.`

. C A 6x2 U/f 4 l/Wnesszes:

JOSEPH B.. BOWEN', 4OIF CINCINNATI, OHIO,. ASSIGNOR OF ONE-FGURTII'YTO HENRY L. GATES AND ONZE-FOURTH T0 ALBERT E. HEEKIN, BOTl 0F GINCINNATI, OHIO.

Toorn-BRUSH.

To all whom t may concern Be it known that I, JOSEPH R. BOWEN, a' citizen of the United States of America, and resident of Cincinnati, county of Hamilton, State of hio, hare invented certain new andl useful Improvements in Tooth-Brushes, of which the following is a specification.

rI'his invention relates to improvements in tooth brushes of the type having the brush portion adjustably mounted on the handle portion. y

`An object of my invention is to produce an improved pivot for brushes of this type, in which the handle and brush portion, are held together by a means which permits their ready adjustment to different angles, but holds them firmly Ain the adjusted positions while in use.' This' and other objects are attained in the pivot construction described in the following specification'and illustrated in the accompanying drawings, in which:

Figure l is a sectional View of a tooth brush embodying my invention. a View similar to Fig. l, but showing the pivot construction upon a somewhat enlarged scale.

The tooth brush embodying my invention consists of a handle A and a brush portion B with a pivot C embodying my invention connecting the handle and brush portion. The handle A and brush portion B have registering bores around the inner ends of which are formed concave recesses. v Around the outer ends of the bores are smaller concave recesses a and b. Within the bores in the handles are sleeves 2 and 3, the ends of which are spun over into the concave recesses at the ends of the bores. Seated within and hearing against the walls of the larger concave recesses of the handle and the brush are concave disks 6 and 7 which havel annular fiat flanges 8 and 9, the faces of which are flush with the contacting faces of the handle and the brush. In order to maintain these' fiat annular flanges 8 and 9 in sufficient frictional engagement with one another to retain the brush portion in any adjusted position to which it may be moved 'relatively to the handle and to reinforce the edges of the bores, the end of the,

sleeves 2 and 3 as well as the ends of the tubular post l are spun over to occupy recesses a and I. This operation isdone with the handle and brush portion held tightly Fig. 2 is handle while 1n use.

Specification of Letters Patent. Patented Jun@ 2"?, 1916,-

Application filed September 16, 1915. Serial No. 51,100. l

together so that When released the spun over ends of the sleeves and post will mainy tain the' handle and brush portion in snug frictional engagement with one another. In this construction thev flanges l and 5 engage the convex outer surfaces of the disks 6 and 7 frictionally so thatthe flanges and disks may lmove relatively to one another in adj ust-ing the handle and brush portion. This is also true of the flanges 8 and 9 which rictic-'nally engage one another around their entire peripheries and are adapted to move relatively to one another and maintain their frictional `engagement during adjustment of the handle and 'brush portion at any desired angle. 1 have thus provided a construction in which there are three places of frictional contact permitting adjustment of the handle and brush portion, but afford-ing sufficient frictional surface to maintain the handle and,brush portion in any adjusted position with a sufficient degree of rigidity to prevent displacement of the brush portion with relationl to the This frictional engagement between the Hat flanges of the disks and between the disks and their respec tive contacting sleeve flanges ,4 and 5, is

maintained, by the spring-likeaction of the my inventiom.

et,Y

1. In a tooth brush, the combination of a I brush portion, bristles secured to the brush portion, said brush portion having a bore in the midst of the bristles, a handle-having a bore registering with the aforesaid bore, said brush portion and handle having opposed registering recesses surrounding said bores, coperating circular friction disks' seated in said recesses, and a rivet in said bores, holding the disks in frictional en, gagement, and having a means for securing .it to the handle and located below the back of the handle.

,2. In a tooth brush the combination of a brush portion. bristles secured to said brush portion, said brush portion having a bore in the midst of the bristles, a handle having a bore registering with said bore, said brush portion and handle having registering conim f Cave recesses surrounding said hores9 concave friction disks with annular i'ienges, Suid disks being located in opposed, ieiation to each other in Suid i'evesses huifiiw their outer weils eonacing with the Weils' of he .recesses and having their fianges conzaeing wizh each ohei and u rivet in the bores and holding seid ienges in frictionzll engage men Wih eeeh other.

3. lin ai ooh brush the conlhiimtion of u, brush portion, hrisies Secured io Suid hi'ueh por'ioinsaid brush portion heffing hoi'e in Ehe mid a of brisierf" e hoodie having; n bore .iefgiseiingf wih i ifi here, Suid hiueh portion :md iandie having' ifegietea'inej eencave recesses smoim-iing .Suid hoz-ee :hooves iocaed in the bores erich having an eiiaieeci fange at one end conmozing with the wiiih of one of said eeesses, concave 'iiieioii disks with annular iunges located in opposed relation o each other in said reeeesee having their outer walls contucing with said enlarged fanges and n rivet inhe hores and holding' the izmges of the disks in iionnl engagement with each other.

in estimony whereof L' huw: hereunto .subscribed my nume this 15th de); of @up 

